Method for identifying and tracking human eye and apparatus for applying same to naked eye 3D display

Abstract

The invention discloses a technology for identifying and tracking a human eye. The technology comprises the following steps: a. initiating an iris spatial position acquisition module; b. under visible lights, a single camera acquiring images of a human face or human eye; c. applying a human face or human eye calibration method to process image information acquired under visible lights, obtaining image coordinates of feature points of the human face or human eye that includes an iris center; d. using the single camera to reconstruct the iris center spatial position; e. obtaining a human eye iris center spatial position which including spatial position information of the human eye with respect to a display.

Description

technical field [0001] The invention relates to the fields of image processing and communication, in particular to a method for identifying and tracking human eyes and a device applied in the field of naked-eye 3D display. Background technique [0002] Glasses-free 3D technology is realized based on the parallax of the human eye, that is, when the left eye and the right eye of a person observe the same target, there will be image differences, and the image seen by the left eye and the image seen by the right eye are synthesized in the brain. Be what we see in 3D. Therefore, by doing some processing on the screen, the images with parallax are mapped to the left and right eyes of the person respectively, and the person looks like a 3D image. [0003] The existing naked-eye 3D display technologies are mainly: (1) Parallax barrier technology: using a switch liquid crystal screen, polarizing film and polymer liquid crystal layer, using the liquid crystal layer and polarizing fil...

AI Technical Summary

Problems solved by technology

Patent CN2016105445948 provides a naked-eye 3D display device and display method to solve the problem that a better 3D image cannot be obtained when the viewer's viewpoint changes during viewing. This patent mainly sets a grating on the light-emitting side of the display screen panel, and set a point of view tracking device for real-time acquisition of the position information of the viewer's current point of view in front of the display screen in 3D display mode, and the control device adjusts the grating according to the position information of the viewer's current point of view in front of the display screen The position of the panel relative to the display screen, so that the current viewer can watch the 3D image through the grating panel

[0005] The problem with this method is that the viewpoint tracking device is an infrared camera device, and when it is applied to equipment such as mobile phones, tablet computers or notebook computers in the prior art, it needs to be installed separately, which brings difficulty in installation and fixation, increased cost,

[0006] Issues affecting aesthetics

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